diff --git a/README.md b/README.md
index 1bc38ba..d97a83a 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,7 @@ In this case, the `<DIR>` is the campaign folder, which contains the deployments
 The command `yarn xls2csv <FILE>` can be used to convert a XLSX file to CSV. On this case, each spreadsheet in the file will be exported to CSV, directly in the `campaigns` folder.
 
 Example of XLSX file: https://docs.google.com/spreadsheets/d/17v-ZfeWoPZoCAVSs57Y3Q1gKUe6S49fZ8rC2KOO_myY/edit?usp=sharing
+
+### YAML Schema
+
+The file `campaigns-schema.yaml` describes the format used in the campaigns files.
\ No newline at end of file
diff --git a/campaigns-schema.yaml b/campaigns-schema.yaml
new file mode 100644
index 0000000..3e9ee62
--- /dev/null
+++ b/campaigns-schema.yaml
@@ -0,0 +1,34 @@
+---
+deployments:
+  required: true
+  type: list
+  schema:
+    type: dict
+    schema:
+      name:
+        required: true
+        type: string
+      platforms:
+        required: true
+        type: list
+        schema:
+          type: dict
+          schema:
+            name:
+              required: true
+              type: string
+            tsv_format:
+              require: false
+              type: boolean
+            rename_as_ict:
+              require: false
+              type: boolean
+            process_as_ict:
+              require: false
+              type: boolean
+            coords_divisor:
+              require: false
+              type: integer
+            files:
+              required: true
+              type: list
\ No newline at end of file
diff --git a/task/package.json b/task/package.json
index 70522e8..83743aa 100644
--- a/task/package.json
+++ b/task/package.json
@@ -21,6 +21,7 @@
     "meow": "^12.1.1",
     "simplify-geojson": "^1.0.5",
     "slugify": "^1.6.6",
+    "superstruct": "^1.0.4",
     "xlsx": "^0.18.5",
     "xml2js": "^0.6.2",
     "yaml": "2.3.4"
diff --git a/task/tests/validate-yaml.test.js b/task/tests/validate-yaml.test.js
new file mode 100644
index 0000000..7171f4a
--- /dev/null
+++ b/task/tests/validate-yaml.test.js
@@ -0,0 +1,38 @@
+const fs = require('fs');
+const path = require('path');
+const {
+  array,
+  assert,
+  boolean,
+  number,
+  object,
+  optional,
+  string,
+} = require('superstruct');
+const { readCampaignYaml } = require('../src/utils');
+
+const structure = array(
+  object({
+    name: string(),
+    platforms: array(
+      object({
+        name: string(),
+        tsv_format: optional(boolean()),
+        rename_as_ict: optional(boolean()),
+        process_as_ict: optional(boolean()),
+        coords_divisor: optional(number()),
+        files: array(string()),
+      })
+    ),
+  })
+);
+
+test('YAML files should be valid', () => {
+  const campaigns = fs.readdirSync('../campaigns/');
+  campaigns
+    .filter((c) => fs.existsSync(path.join('../campaigns/', c, 'deployments.yaml')))
+    .forEach((c) => {
+      console.log(`Checking: ${c}`);
+      assert(readCampaignYaml(path.join('../campaigns/', c)), structure);
+    });
+});
diff --git a/task/yarn.lock b/task/yarn.lock
index d3622a1..2eea81e 100644
--- a/task/yarn.lock
+++ b/task/yarn.lock
@@ -4165,6 +4165,11 @@ strnum@^1.0.5:
   resolved "https://registry.yarnpkg.com/strnum/-/strnum-1.0.5.tgz#5c4e829fe15ad4ff0d20c3db5ac97b73c9b072db"
   integrity sha512-J8bbNyKKXl5qYcR36TIO8W3mVGVHrmmxsd5PAItGkmyzwJvybiw2IVq5nqd0i4LSNSkB/sx9VHllbfFdr9k1JA==
 
+superstruct@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/superstruct/-/superstruct-1.0.4.tgz#0adb99a7578bd2f1c526220da6571b2d485d91ca"
+  integrity sha512-7JpaAoX2NGyoFlI9NBh66BQXGONc+uE+MRS5i2iOBKuS4e+ccgMDjATgZldkah+33DakBxDHiss9kvUcGAO8UQ==
+
 supports-color@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"